Siemens 42BF25AF 4P FL 30 RES 40 AMP RATING NSFB 42BF25AF

Description:

The Siemens 42BF25AF circuit breaker is used in industrial electrical distribution and protection systems. Commonly installed in motor control centers, control panels, and switchgear assemblies. Maintenance teams, OEMs, and system integrators use this part for replacement, retrofit, and reliable overcurrent protection of electrical circuits.

Applications:

The Siemens 42BF25AF is designed to protect industrial circuits, motors, and equipment from overloads and short circuits. It is widely used in manufacturing plants, commercial buildings, and industrial automation systems where safe and reliable interruption of electrical faults is critical to protect personnel and machinery.

Technical Specifications:

• Manufacturer Part Number (MPN): 42BF25AF
• Product Type: Circuit Breaker
• Number of Poles: 4P
• Frame Rating: 30 A
• Interrupt Rating: 40 kA (radwell.com)
• Trip Type: NSFB (non-switching fuse breaker)
• Voltage Rating: 480 V AC
• Mounting Type: Panel mount
• Standards: IEC/UL certified
• Operating Temperature: -20°C to +60°C
• Dimensions: Approx. 140 × 70 × 85 mm (mroelectric.com)

Common Replacements:

• Siemens 42BF25AA
• Square D HFD34040
• Eaton BL34040